Article
Biochemistry & Molecular Biology
Kunlong Qi, Yingke Liu, Chenlei Li, Xinjian Li, Xiuling Li, Kejun Wang, Ruimin Qiao, Xuelei Han
Summary: The study identified differentially expressed circRNAs, miRNAs, and mRNAs in LD muscle of QS and LW pigs, with most circRNAs composed of exons. Results indicated enrichment of DEC parent genes and DEMs in positive regulation of skeletal muscle functions. Two new circRNA-associated ceRNA networks were found to play a role in regulating IMF deposition and pork quality formation.
MOLECULAR GENETICS AND GENOMICS
(2022)
Article
Biochemistry & Molecular Biology
Jian Zhang, Jiying Wang, Cai Ma, Wenlei Wang, Heng Wang, Yunliang Jiang
Summary: By conducting RNA-seq analysis on the Longissimus dorsi muscle of Laiwu pigs and commercial pigs, differential expression of mRNA, miRNA, and lncRNA was identified, leading to the discovery of network modules and a ceRNA network associated with meat quality and production traits between lean-type and fat-type pigs.
Article
Genetics & Heredity
Ze Shu, Ligang Wang, Jinbu Wang, Longchao Zhang, Xinhua Hou, Hua Yan, Lixian Wang
Summary: In this study, high-throughput sequencing techniques were used to analyze the role of alternative splicing in the regulation of intramuscular fat deposition in pigs. The results revealed that alternative splicing isoforms could participate in skeletal muscle development and fatty acid metabolism, and identified genes and protein-protein interactions related to intramuscular fat. These findings provide valuable insights for further understanding the regulation of intramuscular fat deposition.
FRONTIERS IN GENETICS
(2022)
Article
Agriculture, Dairy & Animal Science
Yanru Yue, Zihao Ge, Zhicheng Guo, Yuhe Wang, Gongshe Yang, Shiduo Sun, Xiao Li
Summary: lnc_000368 was found to gradually increase during the adipogenic process in porcine intramuscular fat deposition. Knockdown of lnc_000368 significantly repressed the expression of adipogenic genes and lipolytic genes, leading to impaired lipid accumulation in porcine intramuscular adipocytes.
ANIMAL BIOTECHNOLOGY
(2023)
Article
Veterinary Sciences
Jiyuan Shen, Zhiyun Hao, Yuzhu Luo, Huimin Zhen, Yan Liu, Jiqing Wang, Jiang Hu, Xiu Liu, Shaobin Li, Zhidong Zhao, Yuan Liu, Shutong Yang, Longbin Wang
Summary: This study compared the expression profiles of miRNAs in the Longissimus dorsi muscle tissue between two goat breeds and identified differentially expressed miRNAs that may play important roles in the phenotype differences in meat production performance.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
X-J Li, L-Q Liu, H. Dong, J-J Yang, W-W Wang, Q. Zhang, C-L Wang, J. Zhou, H-Q Cheng
Summary: The study identified differentially methylated genes associated with fatty acid metabolism, muscle development, and pork quality through DNA methylation analysis of two pig breeds. Integrative analysis revealed a significant negative correlation between DNA methylation levels and gene expression levels. Differential methylation of genes related to fat metabolism, lipid metabolism, and skeletal muscle development may contribute to the growth and phenotypic differences observed among different pig breeds.
Article
Agriculture, Multidisciplinary
Li Cen-cen, Yu Shu-long, Ren Hai-feng, Wu Wei, Wang Ya-ling, Han Qiu, Xu Hai-xia, Xu Yong-jie, Zhang Peng-peng
Summary: The study collected data on long intergenic noncoding RNAs (lincRNAs) in porcine skeletal muscle development, identified differentially expressed lincRNAs during early pig embryonic development, predicted their potential target genes and functions, and laid the foundation for further research into lincRNAs functions.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2021)
Article
Genetics & Heredity
Kaitlyn R. Daza, Deborah Velez-Irizarry, Sebastian Casiro, Juan P. Steibel, Nancy E. Raney, Ronald O. Bates, Catherine W. Ernst
Summary: This study integrated miRNA and gene expression data to identify 23 miRNA expression Quantitative Trait Loci (miR-eQTL) in pigs, with miR-874 being associated with multiple production traits. The results provide insight into genomic regions underlying miRNA expression variation and potential regulatory effects on economically important traits in the global pig industry.
FRONTIERS IN GENETICS
(2021)
Article
Genetics & Heredity
Xiangyu Zhang, Cuixia Zhang, Chao Yang, Liangde Kuang, Jie Zheng, Li Tang, Min Lei, Congyan Li, Yongjun Ren, Zhiqiang Guo, Yang Ji, Xiaodong Deng, Dengping Huang, Gaofu Wang, Xiaohong Xie
Summary: This study utilized deep sequencing and iTRAQ proteomics technologies to analyze noncoding RNA and protein profiles of Sichuan white and Germany great line ZIKA rabbits, revealing key regulation relationships potentially associated with muscle fiber type and meat quality of rabbit. Additionally, the miRNA isoforms and gene variants identified in the two rabbit breeds showed pathways and biological processes related to muscle development. This research provides valuable insights for future studies in rabbits and aids in understanding molecular regulation mechanisms in livestock muscle development, benefiting researchers and producers in rabbit breeding programs.
FRONTIERS IN GENETICS
(2021)
Article
Food Science & Technology
Xiaoming Ma, Xian Guo, Yongfu La, Xiaoyun Wu, Min Chu, Pengjia Bao, Ping Yan, Chunnian Liang
Summary: This study compared the effects of different feeding regimes on the growth performance and meat quality of yaks. The results showed that indoor feeding significantly improved the growth performance and meat quality characteristics compared with traditional grazing feeding. Further analysis revealed genes and pathways related to collagen binding, lipoxygenase pathway, arachidonic acid metabolic process, AMPK signaling pathway, FoxO signaling pathway, PPAR signaling pathway, and fatty acid metabolism.
Article
Biochemistry & Molecular Biology
Liepeng Zhong, Min Zheng, Yizhong Huang, Tao Jiang, Bin Yang, Lusheng Huang, Junwu Ma
Summary: In this study, a systematic analysis of expression quantitative trait loci (eQTL) for miRNA profiling in pig longissimus muscle was conducted. A total of 54 cis- and 292 trans-eQTLs associated with the expression of 54 and 92 miRNAs, respectively, were identified. The study also revealed that miRNAs in conserved miRNA clusters are regulated by shared cis-eQTLs, while the expression of mature miRNA-5p/-3p counterparts is likely regulated by different cis-eQTLs. The causal variant for the changes in expression and function of miR-4331-5p, rs344650810, located in its seed region, was pinpointed through fine mapping and bioinformatics analyses. Additionally, rs344650810 was significantly correlated with the density and percentage of type I muscle fibers.
JOURNAL OF GENETICS AND GENOMICS
(2023)
Article
Genetics & Heredity
Jing Wang, Jun-Feng Chen, Qiang Ma, De-Lin Mo, Jia-Jie Sun, Qiao-Ling Ren, Jia-Qing Zhang, Qing-Xia Lu, Bao-Song Xing
Summary: Studies have found that circular RNAs (circRNAs) play an important role in muscle development and lipid deposition, but their functions and regulatory mechanisms in meat quality are still largely unknown. In this study, the circRNA expression profiles between Huainan pigs and Large White pigs in different stages were compared, and differentially expressed circRNAs were found to be enriched in myogenesis, adipogenesis, and muscle fiber-type transition. The interaction networks between circRNAs and microRNAs were also identified, and these microRNAs were found to be involved in muscle development and lipid metabolism. Two shared differentially expressed circRNAs were selected and validated, and they were suggested to be involved in intramuscular fat deposition. These findings provide a foundation for understanding the role of circRNAs in meat quality.
FRONTIERS IN GENETICS
(2022)
Article
Biochemistry & Molecular Biology
Guanghui Li, Runjun Yang, Xin Lu, Yue Liu, Wei He, Yue Li, Haibin Yu, Lihong Qin, Yang Cao, Zhihui Zhao, Xibi Fang
Summary: Meat quality is closely related to fat and connective tissue, so it is important to identify genes involved in lipid metabolism for high-grade beef production. RNA-seq analysis of the Longissimus dorsi muscle in Wagyu and Chinese Red Steppe cattle, which have different meat quality and fat deposition capacities, identified candidate genes associated with beef quality traits. The study revealed that these genes are involved in processes such as fatty acid metabolism, fatty acid transport regulation, and the PPAR signaling pathway. The results provide potential functional genes for improving meat quality traits in beef cattle through marker-assisted selection and molecular breeding.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Multidisciplinary Sciences
Xiao-Ming Men, Zi-Wei Xu, Xin Tao, Bo Deng, Ke-Ke Qi
Summary: The study found that FNDC5 mRNA expression is significantly associated with the characteristics of myofiber types in porcine muscle, and is involved in regulating MyHCs mRNA expression of C2C12 myogenic differentiation cells. FNDC5 could be an important factor in controlling muscle fiber types, providing a new direction for investigating pork quality through muscle fiber characteristics.
Article
Agriculture, Dairy & Animal Science
Huanfa Gong, Tao Gong, Youhua Liu, Yizhen Wang, Xinxia Wang
Summary: In this research, m(6)A sequencing was used to discover genes that showed differential RNA expression and m(6)A modification between high and low IMF groups. ADIPOQ and SFRP1 were identified as hub genes through gene co-expression analysis. ADIPOQ, which contains m(6)A modification sites, was found to promote porcine intramuscular preadipocyte differentiation in an m(6)A-dependent manner, with YT521-B homology domain family protein 1 (YTHDF1) targeting and promoting ADIPOQ mRNA translation.
JOURNAL OF ANIMAL SCIENCE AND BIOTECHNOLOGY
(2023)